Professional CO2 fertiliser system with automatic CO2/pH control WITHOUT CO2 CYLINDER for vigorous & beautiful aquarium plants and the correct pH value

  • CO2 fertiliser system with automatic CO2/pH control to supply all aquarium plants in freshwater aquariums from 40 to 600 l ideally. CO2 cylinder (disposable or refillable) and factory-fresh pH electrode to be purchased separately
  • Simple assembly: screw pressure reducer onto CO2 cylinder (not included), connect solenoid valve to CO2 control unit, hose to bubble counter/check valve and reactor. Attach pH electrode (not included). Set CO2/pH control unit
  • No hose slippage thanks to hose screw connections, check valve prevents water from entering the cylinder. Pressure gauges show cylinder and working pressure. Pressure reducer fits disposable and refillable CO2 cylinders
  • The CO2/pH Control unit measures the pH value (CO2-dependent) via the pH electrode (not included) and automatically regulates the CO2 supply via the solenoid valve until the ideal pH value with the correct amount of CO2 is reached
  • Package contents: pressure reducer with solenoid valve, CO2/pH computer, 3 m hose, bubble counter with check valve, TAIFUN SPIRAL CO2 reactor + extension set
Find out more
Recommended retail price incl. VAT
Available from your specialist dealer.
Dealer close to you
You can find this article at your specialist shop and online
Product information

Nutrition for aquarium plants
Plants provide the aquarium with vital oxygen for your aquarium inhabitants, prevent algae growth, remove pollutants, provide hiding places and reduce pathogens. Plant fertiliser systems with CO2 cylinders supply the plants with the main nutrient CO2 through the water. The plants absorb this and convert it into sugar and oxygen in photosynthesis with the help of light.

Easy to install
(The system contains all components except for the CO2 cylinder and the pH electrode). Screw the pressure reducer onto a CO2 cylinder (suitable for disposable and refillable cylinders) and connect it by hose to the bubble counter (incl. backflow protection) and then to the reactor in the aquarium.
CO2 thus enters the aquarium and is dissolved in the water with the help of the reactor. The solenoid valve is regulated by the CO2 control unit and only adds CO2 if the pH value is too high (pH value depends on CO2). This means that there is always the ideal amount of CO2 in the water.

Technical information
Inc. temperature sensor, modern graphic display with touchpad, sensor check during each calibration, error diagnosis during failed calibration, permanent display: pH actual/set value, sensor voltage, temperature, calibration reminder in days/hours, valve status, precision of measurement, set point adjustment: freely selectable or automatic calculation by means of auto pH, automatic temperature compensation during measuring and calibration, hysteresis freely selectable (upper and lower deviation from switching point), alarm function pH (alarm range), alarm function temperature (range and set point alarm), selectable valve status, language selection: D/BG/F/NL/I/DK/E/P, reset function, universal power unit suitable for all common mains voltages worldwide.

pH electrode
A pH electrode is NOT included in the set and needs to be purchased separately. This ensures that you do not receive an aged electrode in the set, but always a factory-fresh one!



Art. no.:
EAN Code:
Einweg oder Mehrweg CO2 cylinder
Volume packaging:
9.48 l
Gross weight:
2035 g
Net weight:
1445 g
Weight factor:
Packaging dimensions (l/h/w):
157/305/198 mm


Animal species: Tetras, Barbels, Danionins, Livebearers, Cichlids - Small “Predators”, Cichlids - Algae Eaters, Cichlids - Large “Predators”, Labyrinth Fish, Goldfish, Veiltails, Catfish, Loaches, Blowfish, Spiny eels & Reedfish, Butterflyfish & Panchaxes, Killifish & Rainbowfish, Juvenile Fish, Silver arowana, Axolotl, Shrimps and dwarf crayfish, Discus fish, Crustaceans, Guppy, Flowerhorn cichlids, shrimps, cichlids: angelfish, discus, snails, molluscs
Animal size: For all animal sizes
Animal age group: All aquarium fish
Volume habitat: 40-600 l
Material: Plastic (PC), metal (aluminium), plastic (ABS), metal (copper)
Colour: multicoloured

Electronic label / illuminant

Mercury: No
Dimmable: No

Technical Data

Height:90 mm
Length:80 mm
Width:140 mm
Der Druckminderer lässt sich nicht entfernen

Vermutlich steht Ihr System noch unter Druck. Schließen Sie das Flaschenventil und montieren den CO2-Schlauch von der Druckregelarmatur ab. Öffnen Sie die Regulierschraube und lassen den in der Druckregelarmatur noch vorhandenen Druck ab, bis beide Manometer 0 bar anzeigen. Lösen Sie die Anschlussmutter der Druckregelarmatur vom Flaschenventil.

Der Arbeitsdruck am Manometer ändert sich nicht

Wenn Sie den Arbeitsdruck einstellen, muss die CO2 Zugabe aktiv laufen. Andernfalls wird die Änderung nicht unmittelbar sichtbar bei einer Reduzierung. Eine Erhöhung wird auch ohne laufendes CO2 sichtbar, jedoch nicht unmittelbar. Deshalb sollten Sie, bei jeder Reduzierung oder Erhöhung, die Zugabe des CO2 Während des Einstellvorgangs sicherstellen.

Sind 1,2 bar Arbeitsdruck für mein CO2 System ausreichend?

Lange Zeit hatten JBL CO2 Druckminderer einen voreingestellten Arbeitsdruck von 1,5 bar. Dies hat sich in den Köpfen etabliert. Bei den neuen JBL PROFLORA CO2 Druckminderern mit Manometern ist der Arbeitsdruck bei Auslieferung auf 0 bar eingestellt. Sie öffnen die Zugabe über den großen Einstellknopf für den Arbeitsdruck und drehen so weit, dass der gewünschte Arbeitsdruck erreicht ist. Ca. 1,2 bar sind hier maximal einzustellen. Notwendig für den Betrieb aller JBL Rückschlagventile bzw. Rücklaufsicherungen sind mindestens 0,6 bar. Somit ist sichergestellt, dass das Rückschlagventil sich öffnet. Ein höherer Arbeitsdruck ist nicht notwendig, weshalb alle Zubehörteile auch mit den JBL PROFLORA BIO SETs funktionieren. Viele am Markt erhältlichen CO2 Zubehörteile nennen sehr unterschiedliche Angaben für den Arbeitsdruck. Aus Sicherheit wird der am Markt übliche Standard von 1,5 bar genannt. Notwendig ist in der Regel der Arbeitsdruck, der auch den JBL PROFLORA CO2 Zubehörteilen zu Grunde liegt. Nur wenige Ausnahmen benötigen einen Arbeitsdruck von über 2 bar und sind sehr spezielle technische Bauteile.

Which CO2 cylinders are compatible with the JBL PROFLORA CO2 SET V?

You can use all CO2 pressurised gas cylinders offered for aquaristics in specialist shops. You have the choice between disposable pressurised gas cylinders with thread M10x1 and reusable pressurised gas cylinders with thread W 21.8 x 1/14. An adapter for reusable cylinders is already included in the set.

May the JBL PROFLORA CO2 products only be used for the aquarium?

Yes, the JBL PROFLORA CO2 products are designed exclusively for use in the aquarium. The gas contained promotes plant growth and works with fine precision so that even the smallest quantities can be supplied to the aquarium. Constant operation and the safety of the fish are thus guaranteed.

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Reference guide (Themeworld)


With the guarantee extension JBL GarantiePlus you secure your extra-long extended 4-year guarantee from the date of purchase for your JBL product. Do not miss out on your extended guarantee claim!

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Additional product information and downloads

safety instructions

  • safety instruction for technical devices
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spare parts
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